Merge pull request #68 from ccin2p3/feature/load_default_ca_certs

[TLS] Always load system default C.A files

README.md

@@ -210,7 +210,7 @@ More info about Nagios Range format and Units of Measure can be found at [https:
 
 ### Requirements
 
-* Python 3
+* Python 3.6+
 
 ### Configuration
 

check_http_json.py

@@ -152,7 +152,7 @@ class JsonHelper:
         (Element.Key.NestedKey). Returns (None, 'not_found') if not found
         """
 
-        if temp_data:
+        if temp_data != '':
             data = temp_data
         else:
             data = self.data
@@ -550,6 +550,7 @@ def main(cliargs):
             context.verify_mode = ssl.CERT_NONE
         else:
             context.verify_mode = ssl.CERT_OPTIONAL
+            context.load_default_certs()
             if args.cacert:
                 try:
                     context.load_verify_locations(args.cacert)

contrib/icinga2_check_command_definition.conf

@@ -97,8 +97,8 @@ object CheckCommand "http_json" {
 			value = "$http_json_key_not_equals_critical$"
 			description = "Checks equality of these keys and values (key[>alias],value key2,value2) to determine status. Multiple key values can be delimited with colon (key,value1:value2). Return critical if equality check succeeds."
 		}
-		"--key_metrics" = {
-			value = "$http_json_key_metrics$"
+		"--key_metric" = {
+			value = "$http_json_key_metric$"
 			description = "Gathers the values of these keys"
 		}
 	}